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DD-55
TEST PROGRAM
Setting Conditions
Requirements for Measurement
Before starting to measure the unit, make sure you have the following instrumentations and test jigs:
Measuring instruments:
Oscilloscope (Input impedance, 1M Ω or more; Loading, 33 Ω)
Level indicator (JIS-C curve; Input impedance, 1M Ω or more; Loading, 33 Ω; 0dBm: 1mW 600 Ω)
Test jigs:
Power adaptor, PA-5C
Stick
A.
Setting Conditions
Set the [STANDBY/ON] switch to ON with the [TEMPO] and [HANDPERC] button pressed and held (Fig. 1).
B.
Test Entry
To scroll the test items, press the [VOLUME
[VOLUME
] for backwards.
To start a test, press the [START/STOP] button.
Pressing the [START/STOP] button again returns to the selected item.
If you pass the test and return to the selected item, a dot appears on the upper left
of the LED segment (See Fig.2).
If you fail the test, the LED shows "Err" (See Fig.3). To return to the selected
item, press the [DEMO] button. (Note that the [START/STOP] button is inactive
at this time.)
*
Even if the test has successfully completed, pressing the [DEMO] button forces
the system back to the Item Selection.
*
The LED displays, and/or the interactions for OK/NG may be different depending
on the test types. For details, see each test item you want to perform.
C.
Step for NG
If the unit could not pass a test press the [DEMO] button to display the "Test Item
Selection" screen.
(Note that the [START/STOP] button is inactive at this time.)
16
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Push
Push
ON
ON
] button for forwards, and the
(Fig. 1)
(Fig. 2)
(Fig. 3)
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